Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42C13SW00008

Record: MDI42C13SW00008

General

Mineral Record Identification
Record Name(s) Petrant Lake - 1962
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1991-Apr-02
Date Last Modified 2022-Mar-02
Created By
Revised By

Commodities

Primary Commodities: Sulphur/Pyrite



Location

Township or Area: Wabikoba Lake Area

Latitude: 48° 48' 25.64"    Longitude: -85° 54' 2.82"

UTM Zone: 16    Easting: 580708.76   Northing: 5406597.51    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42C13SW

Point Location Description: Point 169 on OGS map M2614

Location Method: Conversion from MDI



Exploration History

Milne (1968) indicated that it is believed that drilling was done in 1962, but no records were found on file. 1983: Homestake Mineral Development Company carried out soil sampling, channel sampling, an IP survey, and drilled 9 DDH totalling 1949.8 m. 1984: Noranda Exploration Company Ltd. carried out a soil sampling program. 1994: Hemlo Gold Mines Inc. carried out mapping and sampling, a magnetometer survey, and soil geochemistry.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.8558 42C13SW0132 42C13SW0132
63.4365 42C13SW0012 42C13SW0012
2.16068 42C13SW0102 42C13SW0102

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Schreiber-Hemlo

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Paragneiss 1 Quartzo-Feldspathic Muscovite Paragneiss Host
Mafic pillowed flow 2 Pillowed Adjacent

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomicOre

Mineralization Comments

Mar 27, 2019 (Therese Pettigrew) - Milne (1968) reported that “one band of extensive pyrite mineralization, which is of an unusual type, is exposed over a distance of about 9000 feet between the Black River and the Awmri Lake road and west of Petrant Lake. The pyrite occurs as disseminations, streaks, and small lenses in a distinctive band of quartzo-feldspathic muscovite paragneiss, which is in contact with a band of pillowed mafic metavolcanics rocks to the north.” Soil sampling carried out by Noranda in 1984 showed an anomaly with up to 50 ppb Au in the area north of the NE end of Petrant Lake (Assessment file 42C13SW0132).



Mineral Record Details

References

Map - Geological Compilation of the Eastern Half of the Schreiber-Hemlo Greenstone Belt

Publication Number: M2614 Scale: 1:50,000    Date: 2000

Author: Muir T.L.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Geology of the Black River area, District of Thunder Bay

Publication Number: R072 Scale:     Date: 1968

Author: Milne V.G.

Publisher Name: Ontario Dept. of Mines

Location:


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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office